Radiator.



"UNTTED STATES PATENT ernten."

EARL W. WIANS, OF DETROITLMIGHIGAN, ASSIGNOR TO REGAL-MOTOR CAR COMANY, OF DETROXT, MICHIGAN, A CORPORATION 0F MICHIGAN.

RADIATOR.

Specification of Letters Eatent.

Patented Apr. i9, 1910.

To all whom tmcy concern:

Be it known that I, EARL W. WINANS, a' citizen of the United States of America,re siding at Detroit, in the county of Wayne and State of Michigan, have invented'certain new and useful Improvements in Radiators, of which the following is a specification, referencebeing had therein to the aecompanying drawings.,

The invention relatesj to radiators. more particularly designed for use as coolers on motor vehicles, and the invention consists in cert-ain features of construction as here-v inafter set forth. y

In the drawingsFigure l is a sectional side elevation of a radiator, as it connects with the cylinder of an explosion engine.

' Fig. 2 is a front elevation thereof.

A is the water-j aclzet surrounding the cyl'-A inder of an explosion engine'. B is the outgoing circulating conduit connected with'said jacket at the upper end thereof.

C is the return conduit, and Dis the radiator. It is usual to connect the outgoing and return conduits respectively to the upper and lower ends of the radiator, there'- by obtaining 'the maximum length of water column under the cooling iniiuence and prometing a thermo circulation. 1f, however, the water level in the radiator falls at any time below the level of the inlet, this willpioducc a break in the water column, which will interfere with the circulation, and, on the other hand, if the inlet connection to the radiator is below the upper end thereof, this will set up an interferencebetween the outgoing hot water and downgoing cooled currents, which also will interfere with an etticient circulation. A

It is the object of the present invent-ion to avoid, on the one hand, danger of unsealing of the inlet, and, on the other hand, any interference between circulatory currents in the radiator.

`It is a further object to obtain a construction in which the inlet leader is arranged below the upper end of "t ie radiator,- but is concealed by the placing ofthe circulatin tubes and radiating fiins in front thereo .i

This produces a more .plea-sing. appearance in front elevation, and also increases the etliciency kof the radiator, as will'be hereinafter described. i f' 1'" The radiator proper may be of any suitable. construction, but-as` shown-is of the type in which the water passes through vertically-arranged tubes E upon which are arranged the laterally-extending radiating ns F. rlvhese tubes E are connected at their lower ends to a header G, which in turn is connected with the conduit C, while the upper end of the tubes is connected with, a header H provided with the lfiller tube I. The conduit E, instead' of being' connected with this header H, communicates with an .intermediate header J, which is arranged to extendlaterally across the radiator upon the rear side thereof, but does not extend to the front. Thusv a portion of the tubes E eX- tendI uninterruptedly from the lower header G to the upper header H in front of the intermediate header J, while another portion of the tubes E extend between the header H and the intermediate header J, with still other tubes E2 extending from the header J to the header H.

Vith the construction described in nor- .mal operation, the radiator is filled with water so that the water level is above the bottom wall of the header ll. This will permit a portion of the heated water pass- It will be observed that there is not the.

slightest tendency toward contiict between the upgoing and downgoing water currents, as the siphonic action of the tubes E will cause the upward movement of the water in the tubes E2, while the greater tendency of the cooled water n the tubes E will cause a lthermo circulation downward to displace the hot water in the jacket A.

Should the water level in the radiator fall considerably below the header H the circulation through the tubes E? and E would be interrupted, but the radiator would still continue to be operative by reason of the tubes E. Thus, though reduced in eiiiciency, the device will always remain operative unt-il the water supply can 4be renewed. It'sometimes happens that the lack of water in the radiator lsfirst detected where the machine is at a distance from auf.7 source'ofwater mine the danger supply.` Under such a condition, the operator can continue to use his machine until the level of the Water is below the header J, but any farther use would be undesirable, and result in the overheating of the engine cylinder. To enable the operator to deteroint, a Water level gage cock K is preferaliily placed upon the radiator at a point above the header J, but below the header H.

W'hat I claim as my invention is:

l. Aradiator comprising top and bottom headers, connecting tubes extending unin terruptedly therebetween, an intermediate inlet header, and o ppositely-extending tubes connecting said inlet header with said top and bottom headers respectively.

2, A radiator comprising top and bottom headers, an intermediate inlet header, and separate Water circulating conduits connecting said intermediate header with said top and bottom headers, and the latter with each' other.

3. A radiator comprising top and bottom headers, an intermediate header arranged in rear of the plane of the radiator front, and radiator tubes connecting said top and bottom headers in front osaid intermediate header.

4. A radiator comprising top and bottom headers, and an intermediate inlet header With separate circulating' Water l conduits connecting said intermediate header With said top and bottom headers and with the intermediate header set back of the front 'plane of the radiating members. 

